Please input the following and then hit "Calculate".
If the output is negative or 0, please check your inputs and try again.
PLEASE NOTE: The purpose of this webpage is to make performing feed advance calculations easier. I have no medical license or training, and am not affiliated with any hospital or medical center. This website is strictly for checking calculations, and should always be compared to the result of performing these calculations by hand. No form data is stored on the server. If you have questions please reach out to karl+fa@themeyers.org. last updated: 8/22/25 © 2025 Karl Meyer